/******************************************************************************
 * 
 * Announce: CSharpKit, Basic algorithms, components and definitions.
 *           Copyright (C) ShenYongchen.
 *           All rights reserved.
 *   Author: 申永辰.郑州 (shenyczz@163.com)
 *  WebSite: http://gitee.com/shenyczz/csharp_csk
 *
 * THIS CODE IS LICENSED UNDER THE MIT LICENSE (MIT).
 * THIS CODE IS PROVIDED *AS IS* WITHOUT WARRANTY OF 
 * ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING ANY
 * IMPLIED WARRANTIES OF FITNESS FOR A PARTICULAR
 * PURPOSE, MERCHANTABILITY, OR NON-INFRINGEMENT.
 * 
******************************************************************************/
using System;
using System.Runtime.InteropServices;

namespace CSharpKit.Convertions
{
    public sealed class StrtuctConverter
    {
        StrtuctConverter() { }
        public static readonly StrtuctConverter Instance = new StrtuctConverter();


        public T FromBytes<T>(byte[] rawdatas)
        {
            Type anytype = typeof(T);
            int rawsize = Marshal.SizeOf(anytype);
            if (rawsize > rawdatas.Length)
                return default(T);

            IntPtr buffer = Marshal.AllocHGlobal(rawsize);
            Marshal.Copy(rawdatas, 0, buffer, rawsize);
            object retobj = Marshal.PtrToStructure(buffer, anytype);
            Marshal.FreeHGlobal(buffer);

            return (T)retobj;
        }

        public byte[] ToBytes<T>(T obj)
        {
            int rawsize = Marshal.SizeOf(obj);
            IntPtr buffer = Marshal.AllocHGlobal(rawsize);
            Marshal.StructureToPtr(obj, buffer, false);
            byte[] rawdatas = new byte[rawsize];
            Marshal.Copy(buffer, rawdatas, 0, rawsize);
            Marshal.FreeHGlobal(buffer);
            return rawdatas;
        }



        //}}@@@
    }

}
